| Addition-cured room temperature vulcanization silicone rubber can be vulcanized in room temperature with no small molecules be emitted and no heat and shrinkage be generated during vulcanization. The silicone rubber has many excellent properties, such as no toxicity, intense mechanical strength, good hydrolysis-resistant stability, low compression deformation, low combustibility, can be cured in high depth, and the velocity of vulcanization can be controlled by temperature easily. So, since the time it was produced for the first time, much of research and application work have been done in various industry, it has been applied in electronics, electric appliances, aerospace and outer space equipments, healthy care department, mechanical manufacture, and many other aspects nowadays.In this paper, platinum (Pt) catalyst and MQ-type vinyl silicone resin which needed in preparing addition-cured room temperature vulcanization silicone rubber was synthesized, and the method and influencing factors also have been discussed. Addition-cured room temperature vulcanization silicone rubber was prepared, which contains the following components: vinyl polysiloxane with vinyl groups both on terminals and in molecule, methyl hydrogen polysiloxane with hydrogen radicals both on terminals and in molecule, MQ-type vinyl silicone resin, Pt-catalyst, fillers (white carbon black). The ratio and types of each component was discussed to find out its influence in silicone rubber both before preparation and after vulcanization, the silicone rubber with best mechanical and electric properties was acquired by comparing practices.It found out that each component has different influencing degree in different aspects on silicone rubber's properties: MQ-type vinyl silicone resin has much greater influence on silicone rubber's dielectric constant (ε) and dielectric dissipation (tanδ) than any other components; methyl hydrogen polysiloxane has direct influence on silicone rubber's mechanical property according to its usage, and in the condition of a better cross linkage, use methyl hydrogen polysiloxane of low hydrogen containing ratio is preferential; Pt-catalyst which prepared in different method has different dispersing effect in silicone rubber, and the usage of Pt-catalyst also have great influences on silicone rubber's dielectric constant (ε) and dielectric dissipation (tanδ); white carbon black which prepared by vapor method can enhance silicone rubber's mechanical property greatly, but also can increase silicone rubber's viscosity in large magnitude.It can get transparent addition-cured room temperature vulcanization silicone rubber with a better property when its components composed according the following ratio (on weight): m (vinyl polysiloxane): m (MQ-type vinyl silicone resin): m (methyl hydrogen polysiloxane): m (Pt-catalyst, accounting to Pt equivalence) =100: 25: 4: 11.5×10-6. And that, silicone rubber has a better mechanical property as the shore hardness is 34, the tensile strength is 0.37MPa, and the break elongation is 68.9%; has a lower dielectric constant (ε) and dielectric dissipation (tanδ) as the dielectric constant (ε) is 0.24 and the dielectric dissipation (tanδ) is 0.08; has a suitable gel time and solidification time as the gel time is approximately 1h and the solidification time is nearly 8h.Because of high saturation and non-polarity of the silicone rubber molecule, addition-cured room temperature vulcanization silicone rubber has a very low surface energy and it difficult to adhere to other substrate. In this paper some work has been done on the improvement of adhesion of transparent addition-cured room temperature vulcanization silicone rubber whose preparation has been described here-before. The work mainly practiced by two ways: one was to brush prime onto the substrate surface and another one was to add adhesion promoter into silicone rubber compounds. Several compounds was used or synthesized, such as silane coupling agents, titanate and its reactants with organic-function group containing agents, borate and its reactants with organic-function group containing agents, epoxy group and siloxane group containing cycle-siloxane with hydrogen radical in its molecule. By comparing testing, it found out that chemicals containing both groups that can promote adhesion (such as hydroxyl, epoxy) and groups that can crosslink with silicone rubber molecule can enhance the adhesive ability of silicone rubber significantly, and this kind of adhesion promoter didn't cause the dielectric constant (ε) of silicone rubber increase to a higher value.
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